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TAS5706PAPR 데이터시트(PDF) 1 Page - Texas Instruments |
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TAS5706PAPR 데이터시트(HTML) 1 Page - Texas Instruments |
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1 / 62 page  1 FEATURES DESCRIPTION TAS5706 SLOS550A – DECEMBER 2007 – REVISED DECEMBER 2007 www.ti.com 20-W Stereo Digital Audio Power Amplifier with EQ and DRC – Programmable Input and Output Mixers 23 • Audio Input/Output – Loudness Compensation for Subwoofer – 20-W into an 8- Ω Load From an 18-V Supply – Automatic Sample-Rate Detection and Coefficient Banking – Two Serial Audio Inputs (Four Audio Channels) • General Features – Supports Multiple Output Configurations: – Serial Control Interface Operational Without MCLK – 2-Ch Bridged Outputs (20 W × 2) – Factory-Trimmed Internal Oscillator Avoids – 4-Ch Single-Ended Outputs (10 W × 4) the Need for External Crystal – 2-Ch Single-Ended + 1-Ch Bridged (2.1) – Surface Mount, 64-Terminal, 10-mm × (10 W × 2 + 20 W) 10-mm HTQFP Package • Closed Loop Power Stage Architecture – Thermal and Short-Circuit Protection – Improved PSRR Reduces Power Supply Performance Requirements – Higher Damping Factor Provides for The TAS5706 is a 20-W, efficient, digital audio power Tighter, More Accurate Sound With amplifier for driving stereo bridged-tied speakers. Two Improved Bass Response serial data inputs allow processing of up to four – Constant Output Power Over Variation in discrete audio channels and seamless integration to Supply most digital audio processors and MPEG decoders, • Wide PVCC Range From (10 V to 26 V) accepting a wide range of input data and clock rates. A fully programmable data path allows these – No Separate Supply Required for Gate channels to be routed to the internal speaker drivers Drive or output via the subwoofer or headphone PWM • Supports 32-kHz–192-kHz Sample Rates outputs. (LJ/RJ/I2S) The TAS5706 is a slave-only device receiving all • Headphone PWM Outputs clocks from external sources. The TAS5706 operates • Subwoofer PWM Outputs at a 384-kHz switching rate for 32-, 48-, 96-, and 192-kHz data, and at a 352.8 kHz switching rate for • AM Interference Avoidance Support 44.1-, 88.2-, and 176.4-kHz data. The 8 × • Audio/PWM Processing oversampling combined with the fourth-order noise – Independent Channel Volume Controls With shaper provides a flat noise floor and excellent 24-dB to –100-dB Range—Soft Mute (50% dynamic range from 20 Hz to 20 kHz. Duty Cycle) – Programmable Dynamic Range Control – 16 Programmable Biquads for Speaker Equalization – Adaptive Biquad Coefficients for EQ and DRC Filters 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 PurePath Digital is a trademark of Texas Instruments. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2007, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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